Honest answer, building and maintaining a large complex project over many years. We have plenty of examples of one-shots like the 1000x slower gcc, but those don't see updates after they achieved their advertisement goal.
Maybe a little more philosophical, novelty. You can ask an LLM to write in the style of <famous author> but afaik the results are bad when you ask it to write in a novel style no-one has seen before.
Maybe a little more philosophical, novelty. You can ask an LLM to write in the style of <famous author> but afaik the results are bad when you ask it to write in a novel style no-one has seen before.